diff --git a/core/modules/system/js/system.modules.js b/core/modules/system/js/system.modules.js
index d47ca70..8534214 100644
--- a/core/modules/system/js/system.modules.js
+++ b/core/modules/system/js/system.modules.js
@@ -63,9 +63,10 @@
           $details.attr('open', true).each(hidePackageDetails);
 
           Drupal.announce(
-            Drupal.t(
-              '!modules modules are available in the modified list.',
-              {'!modules': $rowsAndDetails.find('tbody tr:visible').length}
+            Drupal.formatPlural(
+              $rowsAndDetails.find('tbody tr:visible').length,
+              '1 module is available in the modified list.',
+              '@count modules are available in the modified list.'
             )
           );
         }